Abstract
Background
Previous studies have observed inconsistent associations between birth weight and aggressive prostate cancer risk. This study aimed to prospectively analyse this association in the Health Professionals Follow-up Study (HPFS).
Methods
Birth weight was self-reported in 1994, and prostate cancer diagnoses were assessed biennially through January 2017 and confirmed by medical record review. Multivariable Cox proportional hazards regression was used to evaluate the association between birth weight and prostate cancer risk and mortality.
Results
Among 19,889 eligible men, 2520 were diagnosed with prostate cancer, including 643 with higher-grade/advanced stage, 296 with lethal, and 248 with fatal disease. Overall, no association was observed for increasing birth weight with risk of overall prostate cancer, lower-grade, and organ-confined disease. However, a borderline statistically significant positive trend was observed for increasing birth weight with risk of higher-grade and/or advanced-stage prostate cancer (adjusted hazard ratio [HRadj] per pound: 1.05; 95% confidence interval [CI]: 0.99–1.11; P-trend = 0.08), but no associations were observed with risk of lethal or fatal disease (HRadj: 0.99, 95% CI: 0.91–1.08; P-trend = 0.83; and HRadj: 0.99, 95% CI: 0.90–1.08; P-trend = 0.82, respectively).
Conclusion
No consistent associations were observed between birth weight and prostate cancer risk or mortality in this 22-year prospective cohort study.
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Data availability
The data analysed in this study are not publicly available due to restrictions set by the data holder but may be made available for collaborating researchers upon request.
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Acknowledgements
We would like to thank the following state cancer registries for their help: AL, AZ, AR, CA, CO, CT, DE, FL, GA, ID, IL, IN, IA, KY, LA, ME, MD, MA, MI, NE, NH, NJ, NY, NC, ND, OH, OK, OR, PA, RI, SC, TN, TX, VA, WA and WY. We are also grateful to the Health Professionals Follow-up Study participants, and research staff. In particular, we are grateful to Ruifeng Li for reviewing the statistical analysis programs. The authors assume full responsibility for analyses and interpretation of these data.
Funding
The HPFS cohort is funded by research grant NCI U01 167552 (Harvard). This project was supported by the Fund for Research and Progress in Urology, Johns Hopkins Medical Institutions (SS); Barnes-Jewish Hospital Foundation (SS); the Alvin J. Siteman Comprehensive Cancer Center (P30CA091842, SS); the Washington University School of Medicine Institute for Clinical and Translational Sciences (UL1 TR002345, SS); the Sidney Kimmel Comprehensive Cancer Center (P50CA58236, EAP); and the American Cancer Society (Grant CRP-23-1014041, ELG). The funders had no role in the design or conduct of the study; collection, management, analysis, or interpretation of the data; preparation, review, or approval of the manuscript; or the decision to submit the manuscript for publication.
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Contributions
Study concept and design: QL, ELG, EAP and SS. Acquisition of the data: JBV, LAM and ELG. Analysis and interpretation of the data: QL, YZ, JBV, LAM, ELG, EAP and SS. Drafting of the manuscript: QL. Critical revision of the manuscript for important intellectual content: QL, YZ, JBV, LAM, ELG, EAP and SS. Statistical analysis: QL, YZ and SS. Funding acquisition: LAM and ELG. Administrative, technical, or material support: YZ, JBV, LAM, ELG, EAP and SS. Study supervision: SS.
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Competing interests
Dr. Mucci reports the following disclosures: she received research funding from Astra Zeneca, Janssen, and Veracyte; was a consultant to Bayer; and is on the SAB and has equity interests in Convergent TX. None of these activities are relevant to the current study. The remaining authors declare no competing interests.
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The study protocol was approved by the institutional review boards of the Brigham and Women’s Hospital and Harvard T.H. Chan School of Public Health, as well as those of participating registries as required.
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Liu, Q., Zhang, Y., Vaselkiv, J.B. et al. A prospective study of birth weight and prostate cancer risk and mortality in the Health Professionals Follow-up Study. Br J Cancer 130, 1295–1303 (2024). https://doi.org/10.1038/s41416-024-02593-y
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DOI: https://doi.org/10.1038/s41416-024-02593-y